hot-wolves-jog.md 1.4 KB
"@sv443-network/userutils": major
onSelector() has been turned into the SelectorObserver class to reduce the performance impact on larger sites:
- its instances can be scoped to any element lower in the DOM tree, unlike before where it was always observing the entire body with all its children
- separate instances can be disabled and reenabled individually on demand
- separate instances can have different MutationObserver options set to further reduce performance impact
- the separation into instances allows for a new "chaining" paradigm where selector listeners are only added and checked for once they are actually needed (see examples in the documentation)
- every listener can have a set debounce time, so that it doesn't get called too often (works the same as the
debounce()function, but is disabled by default) - there are now multiple methods to get and delete specific listeners
The SelectorObserver.addListener() method is backwards compatible with the old onSelector() function, so you can just add the class instance in front (for full backwards compat use document.body for the baseElement parameter of the constructor), then change the old function's name and it should work as before.
For more info and examples, please view the SelectorObserver documentation